Well, just as we predicted, HPF is starting to offer S54 turbo components with more options as well as the ability to tune it yourself using the new Pro-EFI setup. The "tuner" kits start at $4495 with the Precision T67 for a Stage I setup and go up to the Precision T76 Stage 4 turbo setup for $5995. Just add your tuning option and supplemental parts (BOV, intercooler, etc.), full specs below.